shanezam203, please do update with results if you go with a different receiver.
I purchased a new receiver capable of the hands free and audio bluetooth connectivity while still using the original Galaxy S. This would pair to both automatically. Now, with the S4, only the HFP connects and I have to manually connect the audio. I've already spent too much time resetting/restarting and trying endless combinations to get both or even only the audio to connect automatically as it did with the former phone. It's bologna.